Motion-transmitting means.



H. w. WILKE.

MOTION TRANSMITTING MEANS. APPLICATION FILED SEPT-29,1917.

1 99 593 Patented Feb. 4, 1919'.

HERMANN w. WILKE, or rnamrinnn, rrnw JERSEY.

MOTION-TRANSMITTING MEANS.

messes.

Specification of Letters Patent.

Patented Feb. 4:, 1919..

Application filed September 29, 1917. Serial No. 193,875.

a citizen of the United States, residing at Plainfield, in the county of Union and State of New Jersey, have invented certain new and-useful Improvements in Motion-Transmitting Means, of which the following is a specification.

The transmission of continuous rotation from an eccentric to a crank by a connecting rod and the reversal of the rotation are impossible without the use of a fly wheel or its equivalent, the reason therefor being that with even slight variations in speed the resistance at the dead points has the tendency to change the direction of rotation of the crank.

On the other hand the use of a fly wheel is objectionable because of the inertia of the flying-masses, the overcoming of which consumes time and power.

My invention has for its object to obviate these drawbacks and consists in the pro-- Vision of a special guide for the connecting rod whereby the latter, during the rotation of the eccentric ina given direction, will be so guided as to maintain the corresponding direction of rotation of the crank, and'whereby a quick and easy reversal of the direction of rotation can be effected.

My invention also consists in the construction, combination and arrangement of parts as will be hereinafter more fully described and set forth in the appended claims.

Reference is had to the accompanying drawing in which similar charactersdenote corresponding parts and in which Figure 1 is an end elevation of my motion transmitting means and Fig. 2 is a vertical section of line 2'-2 of Fig. l. I

In the present embodiment of my invention the device is shown as applied to means for steering vessels such as described and shown in my Patent No. 873,818 of Dec. 17, 1907. It is, however, understood that I do not wish to limit my device to this particular use nor to restrict myself to the details of the construction shown, since various changes may be made by those skilled in the art without deviating from the principle oi my invention.

Referring in detail to the drawing 1 denotes a pipe section or casing which is open at its ends as at 1 and which is adapted to be mounted at the aft or fore of a vessel to extend transversely therethrough through 'to engage lateral guide pieces.

circular openings made in the walls thereof just as described and shown in the aforenamed' patent. The upper surface of the pipe or casing is provided .with a rectangular opening 1 in which an open-topped casing extending downwardly into the pipe is suitably secured. In the present example the casing 2- is shown as an integral part of the pipe 1. The bottom 2 of the casing is cylindrically curved in concentricity with the bottom of the pipe section and forms with the latter an annular space or channel 3. Suitably supported in the walls of the casing there is a shaft 4: provided with a crank 43 disposed within the casing 2. On the ends of the shaft which extend outwardly from the casing and near the open ends of the pipe section are mounted the propellers 5 which serve to steer a vessel by drawing water from one end of the pipe and ejecting it from the other end thereof.

Thus far the construction has been fully described in the above named prior patent. Coming now to the novel features of my invent-ion, there is suitably secured to the pipe section or to another stationary part (not shewn) an upright frame. which in the present example is shown to consist of individual bars 7 arranged in pairs one pair at each side of the opening 1 leading into the easing 2. The upper ends of these upright bars are joined together by a plate or platform 8 which has a slot or recess 8 extending transversely to the shaft 4 and centrally above the crank 4 On this platform are mounted bearings 9 one on each side of the slot in which bearings is rotatively home a spindle 10. This spindle carries at one end a worm gear 11 which is adapted to mesh with a worm 12 provided on a spindle 13. This spindle is suitably mounted in bearings 14 which are supp'orted on a bracket 15 suit.- ably secured to one pair of bars 7. The spinile 13 may be driven from a suitable source (not shown) and may carry a pulley 16 or the like for the transmission of motion thereto. The spindle 10 has mounted thereon centrally between the bearings 9 an eccentric 16 which by a rod 17 is positively and rigidly connected to the crank i of the shaft 4. Mounted on the connecting rod 17 is a piece 18 which extends crosswise thereto and the ends 18 of which are flattened and adapted The guide pieces consist of circular disks 19 each provided .With a diametrically extending slot 19 and rotatively mounted in a plate or frame 20 fixed to a pair of the bars 7 at each end of the pipe 1. The piece 18 is preferably made adjustable on the connecting rod 17 and is adapted to be held in adjusted position by a set screw 21.

By reason of this construction the device is capable of transmitting rotary motion either in horizontal or vertical direction and affords a great increase of the transmission power. One of the most important advantages of this construction is that the connection between the eccentric and the crank is rigid, eliminating thus any links and avoiding lost motion. The guide piece 19 being capable of swinging around its axis in its bearing 20 in opposite directions and slidably engaging in its slot 19, the cross piece 18 will, during a given direction of rotation of the eccentric 16, maintain the direction of the rcciprocatory movement of the connecting rod 17 and consequently bring about a continuous rotation of the crank in the corresponding direction and will also enable the direction of rotation to be quickly and easily reversed.

lVhat I claim and desire to secure by Letters Patent is:

1. The combination of an eccentric crank, a rigid connecting rod and a rotary gniding member slidably engaging an intermediate point of said connecting rod.

2. The combination of a driven shaft, a crank shaft, a connecting rod connected at one end to said crank and cccentricallyconnected to said driven shaft and a rotary guiding member slidably engaging an intermediate point of said connecting rod.

3. The combination of a driven eccentric, a crank shaft, a rigid connecting rod conmosses meeting said eccentric and crank shaft and a rotary slotted guiding member slidably engaging in its slot an intermediate point of said connectingrod.

4. The combination of an eccentric, a crank, a rigid connecting rod between said eccentric and crank, a cross piece at an intermediate tpoint ofws-aid connecting rod and a rotary guiding member slidably engaging said cross piece.

5. The combination of an eccentric, a crank, a rigid connecting rod between the same, an adjustable cross piece on said connecting rod and a rotary slotted member slidably engaging in its slot said cross piece.

6. The combination of an eccentric, a crank, a rigid connecting rod between said eccentric and crank, a stationary frameyand a slot-ted guiding member rotatively supported in said frame and engaging in its slot an intermediate point of said connecting rod.

7. In a device for steering vessels, the combination with a frame of a crank shaft for the steering propellers, a driven eccentric, both said crank shaft and eccentric being supported on said frame, a connecting rod between said eccentric and crank shaft, slotted guiding members supported in said frame to be capable of rotating in opposite directions and means on said connecting rod slidably engaging the slots of said guiding members.

In testimony whereof I afiix my signature in presence of two Witnesses.

HERIMIANN W. WVILKE.

Witnesses EUGENE BENZ, RICHARD H. itaii'riuz. 

